CVE-2025-53396 — Incorrect permission assignment for critical resource issue exists in SS1 Ver.16.0.0.10 and...
Incorrect permission assignment for critical resource issue exists in SS1 Ver.16.0.0.10 and earlier (Media version:16.0.0a and earlier), which may allow users who can log in to a client terminal to obtain root privileges.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- EPSS 0.1% (30-day exploitation probability)+0
- Technical severity (high)+6
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
CISA SSVC assessment CISA
Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (DOS Co., Ltd. SS1, DOS Co., Ltd. SS1 Cloud).
- No fix documented in the sources: reduce exposure and monitor the vendor advisory.
- Search available logs for exploit probes matching the vulnerability class (access control), errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| DOS Co., Ltd. | SS1 | version Ver.16.0.0.10 and earlier (Media version:16.0.0a and earlier) (Affected under Ma | Vulnerable | CVE Program (cve.org) e CISA ADP |
| DOS Co., Ltd. | SS1 Cloud | version Ver.2.1.3 and earlier (Affected under MacOS environment only) | Vulnerable | CVE Program (cve.org) e CISA ADP |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Every base score collected
Sources score independently and may disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Scored by |
|---|---|---|---|---|---|
| 7.3 | CVSS 4.0 | High | — | — | vultures@jpcert.or.jp via NIST National Vulnerability Database |
| 7.3 | CVSS 4.0 | High | — | — | jpcert via CVE Program (cve.org) e CISA ADP |
| 7.0 | CVSS 3.0 | High | 1.0 | 5.9 | vultures@jpcert.or.jp via NIST National Vulnerability Database |
| 7.0 | CVSS 3.0 | High | — | — | GitHub, Inc. via GitHub Security Advisories |
| 7.0 | CVSS 3.0 | High | — | — | jpcert via CVE Program (cve.org) e CISA ADP |
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H (score shown at the top: vultures@jpcert.or.jp) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
CWE-732 · Incorrect Permission Assignment for Critical Resource
EPSS over time FIRST
Oct 18, 2026 → Oct 19, 2026 · 2 reading(s) · max 0.12%
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.
- Audit administrative actions and access to resources outside each user’s normal pattern.
Timeline
What happened to this CVE, newest first.
- 2026
- Affected products added · dos co., ltd./ss1, dos co., ltd./ss1 cloud
- SSVC assessment updated
- Record published
- CVSS changed · 7.0
- Source status changed · → Deferred
- Record created in this database
- 2025
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 2× References added · Oct 18, 2026 – Oct 18, 2026
- 1× Official description updated · Oct 18, 2026 – Oct 18, 2026
References
5 on the record
Elsewhere on this site
Related CVEs (same products)
- High CVE-2025-58081 Use of hard-coded password issue/vulnerability in SS1 Ver.16.0.0.10 and earlier (Media version:16... Aug 28, 2025
- High CVE-2025-58072 Path Traversal in DOS Co., Ltd. SS1 Aug 28, 2025
- Critical CVE-2025-54762 SS1 Ver.16.0.0.10 and earlier (Media version:16.0.0a and earlier) allows a remote unauthenticated... Aug 28, 2025
- Medium CVE-2025-54819 Improper limitation of a pathname to a restricted directory ('Path Traversal') issue exists in... Aug 28, 2025
- Critical CVE-2025-53970 SS1 Ver.16.0.0.10 and earlier (Media version:16.0.0a and earlier) allows a remote unauthenticated... Aug 28, 2025
- Medium CVE-2025-52460 Files or directories accessible to external parties issue exists in SS1 Ver.16.0.0.10 and earlier... Aug 28, 2025
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No fixed version, patch or mitigation documented.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2025-53396 is "Incorrect permission assignment for critical resource issue exists in SS1 Ver.16.0.0.10 and...", rated High. It affects SS1 (DOS Co., Ltd.); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.0 describes technical severity. EPSS 0.12% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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